George corydon jackson



(No Model.)

G. O. JACKSON. APPARATUS FOR EEGULATING THE FLOW 01 GAS 0B, FLUID BY A STEAM PRESSURE.

No. 416,060. Pa-tented Nov. 26, 1889.

N. PETERS, FhcQo-Ulhognphu. Wanhinglnn. ac.

UNITED STATES PATENT OFFICE.

GEORGE CORYDON JACKSON, OF DUSIIORE, PENNSYLVANIA.

APPARATUS FOR REGULATING THE FLOW 0F GAS OR FLUID BY STEAM-PRESSURE.

SPECIFICATION forming part of Letters Patent No. 416,060, dated November 26, 1889.

Application filed February 9, 1889. Serial No. 299,239. (No model.)

To aZZ whom it may concern:

Be itknown that I, GEORGE CORYDON JACK- SON, a citizen of the United States, residing at Dushore, in the county of Sullivan and State of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Regulating the Flow of Gas or Fluid by Steam- Pressure; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to certain improve ments in means for regulating the flow of gas or gasoline or other fluid to the burners of a furnace, boiler, or heater in which a gaseous or fluid fuel is employed; and it has for its object to so construct and combine the parts that the full flow of fuel through the main pipe may be automatically cut off and only sufficient fuel permitted to pass to the burner as to keep up the flame, so that by reducing the flame the fire will be lowered and the steam-pressure reduced, the flow of fuel,,however, being automatically turned on when the temperature or pressure has fallen to a predetermined degree. By such means uniform temperature or pressure is obtained.

To the accomplishment of the above objects the invention consists in the construction and combination of parts hereinafterparticularly described and claimed, reference being had to the accompanying drawings, in which Figure 1 is a side elevation of the mechanism with some parts broken away and others in section. Fig. 2 shows a piston instead of a diaphragm.

In the drawings, the letter A designates a valve-chamber connecting two sections of the fuel-supply pipe, and having a sliding or gate valve D therein, the stem 0 of which is reciprocated by an arm or lever D, connected between its ends to said stem, one end of the arm or leverbeing jointed to the arm E, hinged at its lower end to the valve-casing. The longer arm of the lever D is connected by a link F to a lever G, which may be fulcrumed to any suitable supportfor instance, to a bracket or standard 11, rising from the casing of chamber I. This lever G is connected in any suitable manner to a stem J, which extends into the chamber 1, and it is actuated by a diaphragm K when the pressure of steam against the under side of the diaphragm lifts up the diaphragm. This lever G is weighted by a weight L, and the steam-chamber I is placed in communication with the steam-space or water-space (preferably below the waterline) of the furnace or boiler to which the flow of the fuel is to be regulated. WVhen the steam reaches a predetermined pressure fixed by the adjustment of the weight on the lever G, the stem J is lifted, which throws the end of the lever connected to the link F downward, which depresses the end of lever D, so as to lower the valve-stem and partially or wholly close valve B, so as to lessen or entirely cut off the flow of the fuel to the furnace, and thus lower the flame and consequently the fire until the desired temperature or degree of heat is obtained. As soon as the pressure of steam is reduced by the lowering of the fires below the pressure at which the weight on the lever was set the weight will depress the lever, so as to raise the valve 13 and allow a greater fiow of the fuel to the burners. It will thus be seen that the supply of the fuel can be so regulated as to keep up a fire of a uniform intensity, depending on the quantity of fuel fed to the burners, and that being regulated by the adjustment of the weight on the lever G.

In order to prevent the flame to the boiler or furnace from becoming entirely extinguished whenever the valve F is completely closed by the increased pressure of the steam,

I form an aperture a through the valve, so as to thus form a by-pass for the passage of sufiicient fuel to the burner to keep up the flame, which will be increased when the pressure of the steam lowers and the valve is opened. This combination of parts shown and described forms a very eflicient regulator of the flow of fuel to the burners, and besides is simple in construction and not liable to get out of repair.

Instead of the diaphragm shown in Fig. 1, I may use the piston shown in Fig. 2.

Having described my invention and set forth its merits, what I claim is- 1. The combination, with the diaphragmchamber having a stem actuated by a moving head, of a fuelesupply pipe provided with a sliding valve, a lever connected With the stem of said valve and fulcrumed to a suitable support, a lever connected with the moving stem of the steam-chamber, and means connecting said two levers, substantially as and for the purposes set forth.

2. The combination, With the diaphragmchamber having a stem actuated by amoving head, of a fuel-supply pipe provided with a sliding valve formed With an aperture for the passage of sufficient fuel to maintain afiame,

a lever connected with the stem of said valve and fulcrumed to a suitable support, a lever connected with the moving stem of the steam- GEORGE OORYDON JACKSON.

Witnesses:

EWELL A. DICK, WM. G. HENDERSON. 

